'''
This file is part of PM4Py (More Info: https://pm4py.fit.fraunhofer.de).
PM4Py is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
PM4Py is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with PM4Py. If not, see <https://www.gnu.org/licenses/>.
'''
from pm4py.util import constants, xes_constants, exec_utils
from enum import Enum
from collections import Counter
from pm4py.objects.log.obj import EventLog, EventStream
from typing import Union, Optional, Dict, Any
from pm4py.objects.conversion.log import converter as log_converter
[docs]class Parameters(Enum):
ACTIVITY_KEY = constants.PARAMETER_CONSTANT_ACTIVITY_KEY
[docs]def apply(log: Union[EventLog, EventStream], parameters: Optional[Dict[Union[str, Parameters], Any]] = None) -> Dict[str, int]:
"""
Associates to each activity (with at least one rework) the number of cases in the log for which
the rework happened.
Parameters
------------------
log
Event log
parameters
Parameters of the algorithm, including:
- Parameters.ACTIVITY_KEY => the attribute to be used as activity
Returns
------------------
dict
Dictionary associating to each activity the number of cases for which the rework happened
"""
if parameters is None:
parameters = {}
log = log_converter.apply(log, variant=log_converter.Variants.TO_EVENT_LOG)
activity_key = exec_utils.get_param_value(Parameters.ACTIVITY_KEY, parameters, xes_constants.DEFAULT_NAME_KEY)
ret = Counter()
for trace in log:
activities = Counter([x[activity_key] for x in trace])
activities = [x for x in activities if activities[x] > 1]
for act in activities:
ret[act] += 1
return dict(ret)